How much Alabama income tax will I owe for 2025?

Estimate Alabama income tax for 2025 or 2026 by entering Alabama taxable income, filing status, and residency allocation. The calculator applies Alabama tax tables and marginal rates to show estimated tax due, effective rate, and the income range for your top rate.

How this calculation works

  • Uses Alabama taxable income and filing status to select the tax table range.
  • Applies Alabama marginal rates to estimate tax due.
  • Calculates effective rate and marginal rate for context.

Common mistakes and caveats

  • Part-year and nonresident filers should prorate Alabama-source income.
  • Local taxes are not included.
  • Final liability can change with credits or adjustments not modeled here.

FAQ

Should I enter Alabama taxable income or total income?

Use Alabama taxable income from your return. If you only know total income, estimate deductions first.

Last updated & sources

Last updated January 27, 2026.

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TaxGuide Pro provides free state and federal tax calculators for individuals, freelancers, and small businesses.

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